The present invention discloses a bus bar assembly having multiple bus bars, multiple insulating holders, and a housing. Each of the insulating holders is configured to be mounted to one of the bus bars. Each of the insulating holders includes multiple ribs positioned within an interior cavity of the corresponding insulating holder, and the ribs maintain a desired air gap between each insulating holder and the corresponding bus bar mounted in the insulating holder. The housing is configured to receive each of the bus bars and the corresponding insulating holder.

A plurality of sets of power storage devices each formed by connecting a plurality of power storage devices in parallel are connected in series. A wiring module that is arranged on a plurality of power storage devices each having electrode terminals, the wiring module including: a plurality of connection bus bars each connected to a corresponding electrode terminal and each having 2n (n is a natural number greater than or equal to 2) electrode connection portions; and an insulating protector that houses the plurality of connection bus bars. In each of the plurality of connection bus bars, the cross-sectional areas of the second electrode connection portion from the right of the connection bus bar and the third electrode connection portion from the right of the connection bus bar are set to be larger than the cross-sectional areas of the other electrode connection portions.

An assembly to electrically attach equipment is disclosed. The assembly may include a junction box and the equipment may include solar panels.

Provided is an electrical connection cassette with which it is possible to freely expand a device and add functions in accordance with the size of free space. An electrical connection cassette is provided with: a circuit board; and first connection terminals and second connection terminals mounted on the circuit board and having terminal shapes that can be engaged with each other. In a state with a terminal connection direction oriented in a predetermined direction with respect to the circuit board, the first connection terminals are disposed on the side of one main surface of the circuit board, and in a state with a terminal connection direction oriented in a direction parallel to the predetermined direction, the second connection terminals are disposed near the other main surface of the circuit board.

A tolerance absorbing structure of a first power supply distribution box includes a connection terminal to which one end part of a flat distribution member is connected and fixed; a storage case including a connection opening member into which the connection terminal is inserted and fixed to a vehicle body; an elastic support member configured to support the connection terminal freely movably in a three-dimensional direction with respect to the connection opening member; and a flexible conductor configured to connect a substrate connection part of a circuit conductor stored in the storage case and the connection terminal with an extra length.

An embodiment is directed to a module-to-module power connector configured to form connections between battery modules installed in a battery housing of an energy storage system. The module-to-module power connector includes electrical interfaces and busbar(s) configured to form one or more electrical connections terminals of adjacent battery modules. The busbar(s) is flexibly configured to permit a defined range of movement of the electrical interfaces during insertion of the respective battery modules into respective battery module compartments. The module-to-module power connector may further be arranged inside in a tunnel space, whereby holes are defined in a battery module mounting area housing the battery modules that open into the tunnel space.

A power distribution box includes a bottom cover having a lower surface. Disposed on the lower surface are a pair of axially offset feet. Each of the pair of feet has a first portion and a second portion spaced apart from the lower surface of the bottom cover so as to form an opening having a back wall. The second contact surface is spaced further apart from the lower surface relative to the first contact surface by a ramp portion so as to define the opening to be tapered. The opening is configured to receive a front edge of a bracket. Also disposed on the lower surface is a guide having a first portion that is angled relative to an insertion direction of the power distribution box to a bracket and a linear wall portion configured to slidably engage a side edge of the bracket.

A holding frame for a plug-type connector is intended to have good heat resistance and a high level of mechanical robustness and, when installed in a metallic plug-type connector housing, enable protective grounding while being convenient to use, in particular during the replacement of individual modules. To this end, a holding frame is provided having a rigid die-cast metal frame and cheek parts made of resilient sheet metal, the cheek parts being distinct from but coupled to the rigid die-cast metal frame to extend along opposing exterior sides of the longitudinal sidewalls of the rigid die-cast metal frame to provide a multi-layer sidewall structure, and each cheek part having a upper portion with at least one detent window which is configured to flex outwardly to an insertion state to receive a connector module and to return to a holding state to lock the connector module in place.

A holding frame for a plug-type connector is intended to have good heat resistance and a high level of mechanical robustness and, when installed in a metallic plug-type connector housing, enable protective grounding while at the same time being convenient to use, in particular during the replacement of individual modules. For this purpose, the holding frame can have base frame and resilient cheek parts, which are formed from different materials. The base frame is used for fixing an accommodated connector module or modules in a plane. The resilient cheek parts can assume an insertion state and a holding state, wherein the insertion state permits insertion of at least one connector module into the holding frame in a direction transverse to the plane, and wherein the accommodated connector module is fixed in the holding state.

An embodiment is directed to a module-to-module power connector configured to form connections between battery modules installed in a battery housing of an energy storage system. The module-to-module power connector includes electrical interfaces and busbar(s) configured to form one or more electrical connections terminals of adjacent battery modules. The busbar(s) is flexibly configured to permit a defined range of movement of the electrical interfaces during insertion of the respective battery modules into respective battery module compartments. The module-to-module power connector may further be arranged inside in a tunnel space, whereby holes are defined in a battery module mounting area housing the battery modules that open into the tunnel space.